Mass flow meter metering assembly debugging tool

By designing the mass flowmeter meter metering assembly debugging tooling, using worm gear and worm combined motion and digital display, the problem of inaccurate sleeve angle adjustment in the prior art is solved, refined debugging is achieved, and debugging efficiency and accuracy are improved.

CN223077725UActive Publication Date: 2025-07-08SICHUAN FANHUA AVIATION INSTR & ELECTRICAL CO LTD
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Patent Information

Application Number
CN202422261181.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-07-08
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The existing debugging methods and tooling cannot achieve refined debugging of mass flowmeter meter metering components, especially the angle adjustment of the sleeve is not accurate enough.

Method used

A mass flowmeter meter metering assembly debugging tool set is designed, including a tool base, a driving mechanism and a monitoring mechanism. The sleeve is finely adjusted through the combined movement of the worm gear and worm, and is equipped with a digital display to display the angle in real time.

Benefits of technology

The micro-adjustment of the sleeve angle is achieved, the debugging efficiency and accuracy are improved, and the adjustment accuracy can be achieved of 0.01°, which is convenient for operators to conduct refined debugging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of mass flow meters, and particularly discloses a mass flow meter metering assembly debugging tool which comprises a tool base and a driving mechanism, the driving mechanism comprises a driving assembly and an adjusting assembly, the adjusting assembly comprises a fixing shaft and a worm wheel, one end of the fixing shaft is fixedly connected with the tool base, and the other end of the fixing shaft is fixedly connected with the worm wheel. One end of the worm gear is connected with the fixed shaft, the other end of the worm gear is connected with a central shaft of the metering assembly, the worm gear is rotatably connected with the fixed shaft, a clamping assembly is fixed on the worm gear and is used for clamping a sleeve on the metering assembly, the driving assembly comprises a worm meshed with the worm gear, and the worm is used for driving the worm gear to rotate. When the worm gear rotates, the sleeve and the metering assembly rotate relatively through the clamping assembly. According to the device, the worm drives the worm gear to rotate, the sleeve and the metering assembly rotate relatively through the clamping assembly when the worm gear rotates, the angle of the sleeve on the metering assembly can be finely adjusted, and the purpose of fine debugging of the metering assembly is achieved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of mass flow meters, and particularly relates to a debugging tooling for a metering assembly of a mass flow meter. Background Technique

[0002] Existing mass flow meters can be divided into two types: direct type and indirect type. Indirect mass flow meters include derived type, temperature and pressure compensation type, etc. The working principle of the direct type is often related to the mass (density) of the medium, that is, signals proportional to ρ and ν are directly measured. Currently, the more commonly used direct mass flow meters are: mass flow meters using the Coriolis principle and thermal flow meters using the heat exchange principle between fluids and solids.

[0003] The mass flow meter installed on the engine fuel pipeline is a fuel accessory that detects the mass flow of fuel leading to the engine combustion chamber. During the process of debugging the flow error of the mass flow meter, it is necessary to adjust the angle of the sleeve in the metering assembly of the mass flow meter to change the meshing degree between the impeller and the drum in the metering assembly, so as to achieve the purpose of flow error debugging. However, the existing debugging methods and toolings cannot achieve fine debugging of the metering assembly of the mass flow meter. Content of the Utility Model

[0004] The purpose of the utility model is to provide a debugging tooling for a metering assembly of a mass flow meter, so as to solve the problem that the existing debugging methods and toolings cannot achieve fine debugging when debugging the metering assembly of the mass flow meter.

[0005] The utility model is realized through the following technical solutions:

[0006] In some embodiments, a debugging tooling for a metering assembly of a mass flow meter includes:

[0007] A tooling base for supporting and positioning the metering assembly;

[0008] A driving mechanism, which includes a driving component and an adjusting component. The adjusting component includes a fixed shaft and a worm gear. One end of the fixed shaft is fixedly connected to the tooling base, and the other end is connected to the central axis of the metering assembly. A rotation limiting mechanism is arranged at the connection between the metering assembly and the fixed shaft, and the rotation limiting mechanism is used to prevent relative rotation between the metering assembly and the fixed shaft. The worm gear is rotatably connected to the fixed shaft, and a clamping component is fixed on the worm gear. The clamping component is used to clamp the sleeve on the metering assembly. The driving component includes a worm that is meshed with the worm gear, and the worm is used to drive the worm gear to rotate. When the worm gear rotates, the sleeve and the metering assembly rotate relative to each other through the clamping component.

[0009] In some embodiments, clamping end faces that cooperate with the clamping component are arranged on both sides of the outer side wall of the sleeve.

[0010] In some embodiments, the clamping assembly includes a fixing member and two clamping members. The fixing member is fixedly arranged on the worm gear, and the two clamping members are arranged on the fixing member and cooperate with the clamping end faces on both sides of the sleeve.

[0011] In some embodiments, the connection between the clamping member and the fixing member is a movable connection, and the relative distance between the two clamping members can be adjusted so that the two clamping members can respectively fit with the clamping end faces on both sides of the sleeve.

[0012] In some embodiments, the rotation limiting mechanism includes an anti-rotation member located at the end of the central axis of the metering assembly and a first groove located at the end of the fixed shaft and matching the size of the anti-rotation member.

[0013] In some embodiments, the worm is rotatably arranged on the tooling base.

[0014] In some embodiments, a rotating handle is arranged at the end of the worm.

[0015] In some embodiments, an installation platform is arranged on the tooling base. The installation platform is used to provide support and positioning for the metering assembly, and the installation platform can be lifted and lowered in the vertical direction.

[0016] In some embodiments, a second groove is arranged at the connection of the installation platform with the central axis of the metering assembly, and the central axis of the metering assembly is fitted and inserted into the second groove.

[0017] In some embodiments, a monitoring mechanism is arranged on the tooling base. The monitoring mechanism includes a monitor and a digital display. The monitor is used to monitor the rotation angle of the sleeve and display it on the digital display in real time.

[0018] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0019] 1) The present utility model locates and installs the metering assembly on the tooling base, fixedly connects the fixed shaft with the central axis of the metering assembly to prevent relative rotation between the metering assembly and the fixed shaft. A clamping assembly is fixed on the worm gear. The clamping assembly clamps the sleeve on the metering assembly. Through the combined movement between the worm and the worm gear, when the worm gear rotates, it drives the clamping assembly to make the sleeve rotate relative to the metering assembly, and can finely adjust the angle of the sleeve on the metering assembly, achieving the purpose of fine debugging of the metering assembly.

[0020] 2) A digital display is arranged on the working base, which can display the rotation angle of the sleeve in real time when the clamping assembly clamps and rotates the sleeve, facilitating the staff to debug the metering assembly and improving the debugging efficiency. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure of the embodiment of the present utility model;

[0023] Figure 2 Schematic diagram of the details of the cooperation between the metering component and the adjustment component in the embodiment of the present utility model.

[0024] Wherein: 1. Tooling base, 11. Second groove, 12. Installation table;

[0025] 2. Metering component, 21. Sleeve, 22. Anti-rotation part;

[0026] 3. Driving component, 31. Worm;

[0027] 4. Adjustment component, 41. Worm gear, 42. Fixed shaft, 44. First groove;

[0028] 5. Clamping component, 51. Fixed part, 52. Clamping part;

[0029] 6. Digital display. Specific implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0031] Embodiment 1

[0032] As Figure 1 and Figure 2 shown, a debugging tooling for a mass flowmeter metering component includes:

[0033] Tooling base 1, and the tooling base 1 is used to support and position the metering component 2;

[0034] Driving mechanism, the driving mechanism includes a driving component 3 and an adjusting component 4. The adjusting component 4 includes a fixed shaft 42 and a worm gear 41. One end of the fixed shaft 42 is fixedly connected to the tooling base 1, and the other end is connected to the central shaft of the metering component 2. A rotation limiting mechanism is provided at the connection between the metering component 2 and the fixed shaft 42. The rotation limiting mechanism is used to prevent relative rotation between the metering component 2 and the fixed shaft 42. The worm gear 41 is rotatably connected to the fixed shaft 42, and a clamping component 5 is fixed on the worm gear 41. The clamping component 5 is used to clamp the sleeve 21 on the metering component 2. The driving component 3 includes a worm 31 meshed with the worm gear. The worm 31 is used to drive the worm gear 41 to rotate. When the worm gear 41 rotates, the sleeve 21 and the metering component 2 rotate relative to each other through the clamping component 5.

[0035] In this embodiment, the metering component 2 is positioned and installed on the tooling base 1, and the fixed shaft 42 is fixedly connected to the central shaft of the metering component 2 to prevent relative rotation between the metering component 2 and the fixed shaft 42. A clamping component 5 is fixed on the worm gear 41. The clamping component 5 clamps the sleeve 21 on the metering component 2. Through the combined movement between the worm 31 and the worm gear 41, when the worm gear 41 rotates, it drives the clamping component 5 to make the sleeve 21 and the metering component 2 rotate relative to each other, which can finely adjust the angle of the sleeve 21 on the metering component 2 and achieve the purpose of fine debugging of the metering component 2.

[0036] Embodiment 2

[0037] As Figure 1 and Figure 2 shown, clamping end faces cooperating with the clamping component 5 are provided on both sides of the outer side wall of the sleeve 21.

[0038] The clamping component 5 includes a fixing member 51 and two clamping members 52. The fixing member 51 is fixedly arranged on the worm gear 41, and the two clamping members 52 are arranged on the fixing member 51 and cooperate with the clamping end faces on both sides of the sleeve 21.

[0039] Preferably, the clamping member 52 is movably connected to the fixing member 51, and the relative distance between the two clamping members 52 can be adjusted so that the two clamping members 52 can respectively fit with the clamping end faces on both sides of the sleeve 21. Through the cooperation between the clamping end face and the clamping member 52, the clamping component 5 can drive the sleeve 21 to rotate.

[0040] The rotation limiting mechanism includes an anti-rotation member 22 at the end of the central shaft of the metering component 2 and a first groove 44 provided at the end of the fixed shaft 42 and matching the size of the anti-rotation member 22. When the metering component 2 is placed on the tooling base 1 and connected to the adjusting component 4, the anti-rotation member 22 is just inserted into the first groove 44 and fixed, preventing the metering component 2 from rotating following the clamping component 5 when the clamping component 5 clamps the sleeve 21 and rotates.

[0041] Preferably, the anti-rotation member 22 can be a hexagonal nut.

[0042] The worm 31 is rotatably arranged on the tooling base 1. The worm 31 is meshed and connected with the worm gear 41. Through the cooperation of the worm 31 and the worm gear 41, when the worm 31 drives the worm gear 41 to rotate, the worm gear 41 can be driven to rotate at a reduced speed, and then the sleeve 21 can be driven to rotate slightly, achieving the purpose of fine debugging. The adjustment accuracy can reach 0.01°.

[0043] Preferably, a rotating handle is arranged at the end of the worm 31, which is convenient for the operator to manually rotate the worm 31.

[0044] An installation table 12 is arranged on the tooling base 1. The installation table 12 is used to provide support and positioning for the metering assembly 2. The installation table 12 can be lifted and lowered in the vertical direction. Through the installation table 12, the support height of the metering assembly 2 in the vertical direction can be adjusted, which is convenient for the metering assembly 2 to be placed in the tooling base 1 and cooperate with the adjustment assembly 4 for fixation.

[0045] A second groove 11 is arranged on the installation table 12 at the connection with the central axis of the metering assembly 2. The central axis of the metering assembly 2 is fitted and inserted into the second groove 11. When the clamping assembly 5 clamps and rotates the sleeve 21, the bottom of the metering assembly 2 is prevented from shifting, further improving the accuracy of the micro-angle adjustment of the sleeve 21.

[0046] A monitoring mechanism is arranged on the tooling base 1. The monitoring mechanism includes a monitor and a digital display 6. The monitor is used to monitor the rotation angle of the sleeve 21 and display it on the digital display 6 in real time, which is convenient for the staff to debug the metering assembly 2 and improves the debugging efficiency.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0048] In addition, in the description of the present invention, if terms such as "horizontal" and "vertical" appear, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0049] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "installed", "connected", "connected" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0050] The above is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present utility model falls within the protection scope of the present utility model.

Claims

1. A debugging tooling for a mass flowmeter measurement component, characterized in that Comprising: A tooling base (1) for supporting and positioning a metering component (2). A driving mechanism, which includes a driving component (3) and an adjusting component (4). The adjusting component (4) includes a fixed shaft (42) and a worm gear (41). One end of the fixed shaft (42) is fixedly connected to the tooling base (1), and the other end is connected to the central axis of the metering component (2). A rotation limiting mechanism is provided at the connection between the metering component (2) and the fixed shaft (42) to prevent relative rotation between the metering component (2) and the fixed shaft (42). The worm gear (41) is rotatably connected to the fixed shaft (42), and a clamping component (5) is fixed on the worm gear (41). The clamping component (5) is used to clamp a sleeve (21) on the metering component (2). The driving component (3) includes a worm (31) meshed with the worm gear. The worm (31) is used to drive the worm gear (41) to rotate. When the worm gear (41) rotates, the sleeve (21) and the metering component (2) rotate relative to each other through the clamping component (5).

2. The commissioning tool for the mass flowmeter metering component according to claim 1, characterized in that, Clamping end faces for cooperating with the clamping component are provided on both sides of the outer side wall of the sleeve (21).

3. The debugging tooling for the mass flowmeter metering component according to claim 2, characterized in that, The clamping component (5) includes a fixing member (51) and two clamping members (52). The fixing member (51) is fixedly arranged on the worm gear (41), and the two clamping members (52) are arranged on the fixing member (51) and cooperate with the clamping end faces on both sides of the sleeve (21).

4. The commissioning tool for the mass flowmeter metering component according to claim 3, characterized in that, The clamping members (52) are movably connected to the fixing member (51), and the relative distance between the two clamping members (52) can be adjusted so that the two clamping members (52) can respectively fit with the clamping end faces on both sides of the sleeve (21).

5. The commissioning tool for the mass flowmeter metering component according to claim 1, characterized in that, The rotation limiting mechanism includes an anti-rotation member (22) at the end of the central axis of the metering component (2) and a first groove (44) provided at the end of the fixed shaft (42) with a size matching that of the anti-rotation member (22).

6. The commissioning tool for the mass flowmeter metering component according to claim 1, wherein The worm (31) is rotatably arranged on the tooling base (1).

7. The debugging tooling for the mass flowmeter metering component according to claim 1, characterized in that A rotating handle is provided at the end of the worm (31).

8. The commissioning tool for the mass flowmeter metering assembly according to claim 1, characterized in that An installation platform (12) is provided on the tooling base (1) for providing support and positioning for the metering component (2), and the installation platform (12) can be lifted and lowered in the vertical direction.

9. The commissioning tool for the mass flowmeter metering assembly according to claim 8, characterized in that A second groove (11) is provided on the installation platform (12) at the connection with the central axis of the metering component (2), and the central axis of the metering component (2) is inserted into the second groove (11) in a matching manner.

10. The commissioning tool for the mass flowmeter metering assembly according to claim 1, wherein A monitoring mechanism is provided on the tooling base (1), and the monitoring mechanism includes a monitor and a digital display (6). The monitor is used to monitor the rotation angle of the sleeve (21) and display it on the digital display (6) in real time.